The image below is of the Hercules globular cluster known as M13 (Messier object 13). M13 is around ~22,000 light years away and composed of several hundred thousand stars. To the left of the cluster is a dim galaxy know as IC 4617 (index Catalog 4617). This galaxy is moving away from us at 10740 km/sec giving it a redshift of .036490. This means that today we are seeing it as it was ~1/2 billion years ago (just after time of Cambrian explosion on earth). The Cambrian explosion refers to the high rate of evolution that occurred as multicellular life filled in all the major animal phyla.
The second image is an annotated version labeling IC 4617 and the other red circles mark the location of more distance galaxies I found in the image (I'm sure I missed a lot of them). The yellow circles are groups of 2 or more galaxies I spotted. This image was taken at a ~4000mm focal length at F10 and has much higher resolution than my previous attempt using a 1000mm focal length and a DSLR. The older photo had a wider field of view and was able to include the bright galaxy call NGC 6207 but not a hint of IC 4617)(see
https://www.uglyhedgehog.com/t-604855-1.html). Note this new image is ~180 flipped relative to the older image.
For those interested this image was made by stacking multiple images taken with a 60 mega pixel mono camera using luminance, red, green and blue filters and then combining each separate stacked filter set to create a full color image.
The luminance images where made with a stack of 20 1 minute exposures.
The red, green and blue were made with a stacks of 20 2 minutes exposures each.
All questions, comments and suggestions are welcome.
The image below is of the Hercules globular cluste... (